Rokhlani, R., L. Soesanto, S. Nur, and N. Prihatiningsih. “COGONGRASS ROOT EXTRACT FROM FIVE DIFFERENT SOILS TYPES FOR SUPPRESSING PURPLE BLOTCH AND INCREASING GROWTH AND YIELD OF SHALLOTS”. Jurnal Hama Dan Penyakit Tumbuhan Tropika, vol. 21, no. 2, June 2021, pp. 103-15, doi:10.23960/jhptt.221103-115.